Home/Oldsmobile/Cutlass Supreme/Oldsmobile Cutlass Supreme I (1988-1997)/Repair manual/Engine Controls - Tests W/codes - 3.4l Pfi/CODE 53, SYSTEM OVERVOLTAGE

Contents

Section: Engine Controls - Tests W/codes - 3.4l Pfi

INTRODUCTION

MODEL IDENTIFICATION

SELF-DIAGNOSTIC SYSTEM

HARD FAILURES

INTERMITTENT FAILURES

DIAGNOSTIC PROCEDURE

RETRIEVING CODES (NON-SCAN)

READING TROUBLE CODES

TROUBLE CODE DEFINITION

HARD OR INTERMITTENT TROUBLE CODE DETERMINATION

CLEARING TROUBLE CODES

ECM/PCM LOCATION

Diagnostic Aids

Field Service Mode Check

SPECIAL TOOLS (DIAGNOSTIC)

SCAN TESTER USAGE

SCAN DATA

PCM/BCM CODE CHARTS

CODE 13, OPEN OXYGEN (O2) SENSOR CIRCUIT

CODE 14, COOLANT TEMPERATURE SENSOR, SIGNAL VOLTAGE LOW

CODE 15, COOLANT TEMPERATURE SENSOR, SIGNAL VOLTAGE HIGH

CODE 21, THROTTLE POSITION SENSOR, SIGNAL VOLTAGE HIGH

CODE 22, THROTTLE POSITION SENSOR, SIGNAL VOLTAGE LOW

CODE 23, MAT SENSOR SIGNAL VOLTAGE HIGH

CODE 24, VEHICLE SPEED SENSOR (VSS)

CODE 25, MAT SENSOR SIGNAL VOLTAGE LOW

CODE 32, EGR SYSTEM ERROR

CODE 33, MAP SENSOR, SIGNAL VOLTAGE HIGH

CODE 34, MAP SENSOR, SIGNAL VOLTAGE LOW

CODE 35, IAC IDLE SPEED ERROR, W/O TECH 1

System Too Lean

System Too Rich

Throttle Body

IAC Valve Connections

PCV Valve

CODE 35, IAC IDLE SPEED ERROR, USING TECH I

CODE 42, EST CKT OPEN OR GROUNDED

CODE 43, ESC ERROR, W/O ESC MODULE

CODE 44, LEAN EXHAUST INDICATION

O2 Sensor Wire

Fuel Contamination

Fuel Pressure

Exhaust Leaks

Misfire Or Stall

CODE 45, RICH EXHAUST INDICATION

Fuel Pressure High

Ignition Ground

Evaporative Fuel Canister

MAP Sensor

TPS

O2 Sensor Contamination

EGR Problem

CODE 51, FAULTY PROM/MEM-CAL

CODE 52, FAULTY CAL-PAK

CODE 53, SYSTEM OVERVOLTAGE

CODE 54, FUEL PUMP VOLTAGE LOW

CODE 55, ECM ERROR

CODE 61, DEGRADED OXYGEN (O2) SENSOR

CODE 66, A/C PRESSURE SENSOR

SUMMARY

All sections

CODE 53, SYSTEM OVERVOLTAGE Oldsmobile Cutlass Supreme I

Engine Controls - Tests W/codes - 3.4l Pfi 2 illustrations

CODE 53, SYSTEM OVERVOLTAGE

This code indicates a basic charging system problem. Code 53 will set when voltage at control module terminal is greater or less than specification for a precalibrated time. If voltage at ECM battery voltage terminal is not within specification, check and repair charging system.

Application	Minimum Charge	Maximum Charge
3.4L	N/A	17.1

CHARGING SYSTEM SPECIFICATIONS

Code 53, Flow Chart, System Overvoltage. Scheme 205

Scheme 205: Code 53, Flow Chart, System Overvoltage

Scheme 205: Code 53, Flow Chart, System Overvoltage

Code 53 Flow Chart. Scheme 206

Scheme 206: Code 53 Flow Chart

Scheme 206: Code 53 Flow Chart